https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=297982
Bug ID: 297982
Summary: page fault around asmc_sms_intrfast
Product: Base System
Version: 16.0-CURRENT
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Created attachment 274161
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=274161&action=edit
Example of /var/crash/core.txt
On my Macbook Pro mid. 2012, when asmc(4) is detected, a page fault occurs
randomly.
An example of /var/crash/core.txt is attached.
Here is part of backtrace:
===
__curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:57
57 __asm("movq %%gs:%c1,%0" : "=r" (td)
(kgdb) #0 __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:57
td = <optimized out>
#1 doadump (textdump=textdump@entry=1)
at /usr/src/sys/kern/kern_shutdown.c:399
error = 0
coredump = <optimized out>
#2 0xffffffff80c5dee7 in kern_reboot (howto=260)
at /usr/src/sys/kern/kern_shutdown.c:519
once = 0
__pc = 0x0
#3 0xffffffff80c5e3fd in vpanic (fmt=<optimized out>,
ap=ap@entry=0xfffffe008cc20af0) at /usr/src/sys/kern/kern_shutdown.c:974
buf = "page fault", '\000' <repeats 245 times>
__pc = 0x0
__pc = 0x0
__pc = 0x0
other_cpus = {__bits = {14, 0 <repeats 15 times>}}
td = 0xfffff8000240a780
bootopt = <unavailable>
newpanic = <optimized out>
#4 0xffffffff80c5e243 in panic (fmt=<unavailable>)
at /usr/src/sys/kern/kern_shutdown.c:887
ap = {{gp_offset = 16, fp_offset = 48,
overflow_arg_area = 0xfffffe008cc20b20,
reg_save_area = 0xfffffe008cc20ac0}}
#5 0xffffffff811f1b09 in trap_fatal (frame=<optimized out>,
eva=<optimized out>) at /usr/src/sys/amd64/amd64/trap.c:1031
type = <optimized out>
handled = <optimized out>
#6 0xffffffff811f1b09 in trap_pfault (frame=0xfffffe008cc20b90,
usermode=false, signo=<optimized out>, ucode=<optimized out>)
__pc = 0x0
__pc = 0x0
__pc = 0x0
td = <optimized out>
p = <optimized out>
eva = 16
map = <optimized out>
ftype = <optimized out>
rv = <optimized out>
#7 <signal handler called>
No locals.
#8 0xffffffff837fe1d4 in asmc_sms_intrfast (arg=0xfffff80001417e00)
at /usr/src/sys/dev/asmc/asmc.c:2318
dev = 0xfffff80001417e00
sc = 0xfffff8000d5e6000
type = <optimized out>
#9 0xffffffff80c0e2f8 in intr_event_handle (ie=ie@entry=0xfffff8000136db00,
frame=frame@entry=0xfffffe008cc20d20) at /usr/src/sys/kern/kern_intr.c:1395
__pc = 0x0
__pc = 0x0
__pc = 0x0
__pc = 0x0
td = 0xfffff8000240a780
filter = <optimized out>
thread = false
ret = <optimized out>
oldframe = 0x0
ih = 0xfffff80003fac180
phase = <optimized out>
(snip)
===
And, asmc(4) is detected by devmatch, then macbook will get page fault with no
human operations.
A workaround is 'sysrc devmatch_enable="NO"'
--
You are receiving this mail because:
You are the assignee for the bug.
